/*
 * Copyright 2010-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.starflow.engine.core;

import com.googlecode.starflow.engine.ProcessEngineException;
import com.googlecode.starflow.engine.core.activity.ActivityType;
import com.googlecode.starflow.engine.core.activity.EndActivityType;
import com.googlecode.starflow.engine.core.activity.ManualActivityType;
import com.googlecode.starflow.engine.core.activity.StartActivityType;
import com.googlecode.starflow.engine.core.activity.SubFlowActivityType;
import com.googlecode.starflow.engine.core.activity.ToolAppActivityType;

/**
 * 
 * @author libinsong1204@gmail.com
 * @version 1.0
 */
public class ActivityTypeFactory {
	
	public static ActivityType buildActivityType(String type) {
		if(Constants.ACT_TYPE_START.equalsIgnoreCase(type))
			return new StartActivityType();
		else if(Constants.ACT_TYPE_END.equalsIgnoreCase(type))
			return new EndActivityType();
		else if(Constants.ACT_TYPE_MANUL.equalsIgnoreCase(type))
			return new ManualActivityType();
		else if(Constants.ACT_TYPE_TOOLAPP.equalsIgnoreCase(type))
			return new ToolAppActivityType();
		else if(Constants.ACT_TYPE_SUBPROCESS.equalsIgnoreCase(type))
			return new SubFlowActivityType();
		else
			throw new ProcessEngineException("环节类型值不正确，Type="+type);
	}
}
